APC UPS control system manual Power Down During Shutdown, Found under the key

c:\apcupsd\apcupsd.exe /service

found under the key:

HKEY_LOCAL_MACHINE Software\Microsoft\Windows\CurrentVersion\RunServices

to

c:\apcupsd\apcupsd.exe /service -p

If you have a Smart UPS, you can configure the kill power grace period, and you might want to set it to 3 minutes. If you have a dumb UPS, there is no grace period and you should not use this procedure. If you have a Back-UPS CS or ES, these UPSes generally have a fixed grace period of 2 minutes, which is probably sufficient.

Power Down During Shutdown

Our philosophy is to shutdown a computer but not to power it down itself (as opposed to having the UPS cut the power as described above). That is we prefer to idle a computer but leave it running. This has the advantage that in a power fail situation, if the killpower function described above does not work, the computer will continue to draw down the batteries and the UPS will hopefully shutoff before the power is restore thus permitting an automatic reboot.

Nevertheless some people prefer to do a full power down. To do so, you might want to get a copy of PsShutdown, which does have a power down option. You can find it and a lot more useful software at: http://www.sysinternals.com/ntw2k/freeware/pstools.shtml . to use their shutdown program rather than the apcupsd supplied version, you simply edit:

c:\apcupsd\etc\apcupsd\apccontrol

with any text editor and change our calls to shutdown to psshutdown.

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